Quality Control Scientist

Are you the kind of scientist who notices the details others miss? Good, we've got just the role for you.

At LEX Diagnostics, we're on a mission to make diagnostics faster, simpler, and more accessible, without compromising performance. Our LEX VELO point-of-care PCR system is built to bring lab-quality results wherever they're needed. And behind every accurate test result is a set of reagents that have passed the highest standards of quality control.

That's where you come in.

We're looking for a Quality Control Scientist to join our Reagent Production team and take on a hands-on role assessing the consistency and quality of our reagents, from raw materials to final products. You'll be running RT-qPCR assays, troubleshooting issues, collaborating across teams, and documenting results in a way that makes regulators smile.

If you're comfortable in the lab, curious about how things work (or don't), and excited to play a key role in getting a new IVD to market, we'd love to talk.

What you'll be doing

• Running QC tests on incoming materials, in-process reagents, and finished products using qPCR and RT-qPCR
• Following established protocols and documenting results with clarity and accuracy
• Working closely with the Biology, Manufacturing and Quality teams to ensure every batch meets our gold-standard
• Supporting continuous improvement efforts and helping refine QC methods as the product scales
• Ensuring everything is done to Good Laboratory Practice and aligned with our ISO13485/FDA-aware processes
• Contributing to the reliability and reproducibility of one of the fastest PCR systems in the world

What we're looking for

• A Bachelor's degree in molecular biology or a related field
• Hands-on experience with qPCR/RT-qPCR (and ideally the know-how to troubleshoot it)
• An appreciation for precision, accuracy, and documentation - with excellent attention to detail
• Strong communication skills and the ability to present data clearly and confidently
• Someone who's motivated, proactive, and thrives in a fast-paced, collaborative lab environment

Nice to have

• Previous experience in IVD or medical diagnostics
• Familiarity with ISO13485 or similar quality systems
• Experience in QC testing for regulated products

Our working culture encourages entrepreneurship, shared ideas, and technical collaboration, while providing you the freedom to do your best work. We also offer fantastic employee benefits including:

• Employer pension contribution of 10% (+3% personal contribution)
• Private Medical Insurance
• Life insurance
• 25 days' annual holiday plus bank holidays
• Discounts and memberships to local sports facilities and the theatre

Why join LEX?

You'll be part of brilliant team of scientists and engineers, in a culture that encourages ownership, curiosity, and collaboration.

You'll also get:

• A front row seat in a company preparing for product launch
• The chance to grow with the role and help shape our QC approach
• A clear purpose: what you do here will directly improve healthcare outcomes around the world

Who are we and what does the future hold for you?

LEX Diagnostics was founded in 2020. Our innovative system integrates effortlessly into primary care settings, bringing PCR-level sensitivity to urgent care centres, physicians, labs, and pharmacies, all at a significantly lower cost per test than other molecular platforms.

2025 is a milestone year for us as we've just submitted dual 510(k) CLIA waiver applications to the U.S. FDA. This means you will be an important part of a high impact launch that will enhance your future career credentials.

The Future

In December 2023, QuidelOrtho invested in LEX Diagnostics, which included the exclusive option to acquire the company up to or shortly after 510(k) clearance by the FDA. In QuidelOrtho, we have an investment partner that recognises the capabilities of our team, and are excited for what we can continue to build together We are optimistic to receive 510(k) clearance in late 2025 or early 2026.

What this means for you

1. More Resources - Manufacturing scale, regulatory & distribution infrastructure
2. R&D Focus - Concentrated innovation around LEX platform and test menu
3. Career Mobility - As well as creating a cross-disciplinary development environment in science and engineering, LEX employees can transition into broader roles (e.g., regulatory affairs, global supply chain, sales, clinical affairs) across the integrated organisation.
4. Global Exposure - International workflows & markets (US & EU)
5. Impact & Stability - Increased product reach and organisational strength
6. Development - Structured programs and training opportunities

2026 should see the elevation of the LEX Diagnostics team from startup environment into a well-supported, international diagnostics powerhouse without sacrificing the very thing that made our team successful, innovation. You'll help drive forward a unique, market-leading platform within a growing team that needs to invest in your development and career growth.

Into the details, but ready for the bigger picture?

Come help us build something extraordinary. We'd love to hear from you.